Metal-cutting tool.



1.1. MISENER & W. S. SANDERS.

METAL CUTTING TOOL.

APPUCAHON FILED 06!. 11. 191i.

Patented Oct. 15, [9182.

A TTORNE VS UNITED STATES PATENT OFFICE.

JOHN I. MISENER AND WILLIAMS. SANDERS, OF SYRACUSE, NEW YORK; SAID MISEiNEB.

ABSIGNOB, BY DIRECT AND MESNE ASSIGNMENTS, T0 MISENER &: IRVING MANU- FACTURING CO. THC 0F SYRACUSEQNEW YORK, A CORPORATION OF NEW YORK.

METAL-CUTTING TOO L.

Specification of Letters Patent.

Patented Oct. 15, 1918.

Application filed October 11, 1917. ,Serial No. 196,042.

To all whom it may concern:

Be it known that we, Jornv I. Mrsnnnn' and WILLIAM S. SANDERS, of Syracuse, in the county of Onondaga and State of New York, have invented a certain new and useful Metal-Cutting Tool, of which the following is a s ecification.

This meta cutting tool is an improved construction of the pending application of Misener, Skroback and Sanders, Serial No. 148,973 filed Febru'ar 16, 1917. and has for its object a particu arly simple and efficient attachment therefor, whereby the range of said metal cutting tool is increased. It also provides for a universal movement between the body and the spindle of said tool and includes a simple and efficient means for locking said universal movement.

In describing this invention, reference is had to the accompanying drawing in which like characters designate corresponding parts in all of the views.

Figure 1 is a sectional view partly in elevation of this metal cutting tool.

Fig. 2 is an inverted face view of the same, partly in section.

Fig. 3 is a sectional view partly in elevation of parts seen in Fig. 1, taken at a right angle thereto.

Fig. 4 is a plan view of the spindle; and

Fig. 5 is a section on line 5-5, Fig. 1, looking down, parts being removed.

This invention comprises generally a rotating head having a fiat face with circular rooves therein, concentric with the axis 0 rotation of the head, an arc-shaped hacksaw held in one of said grooves having means at the forward end thereof for holding the same from rotative movement relatively to said head, a spindle extending from the head, means for obtaining a universal movement between the rotary head and said spindle, means for locking said parts from universal movemendmeans extending axially from thehead for forming a central bearin therefor and means for attaching an ad itional groove containing part to said head.

This tool is particularly adapted for use with a hand-operated device, as a hand drill or the like, but obviously is just as efficient when used with power operating machines.

1 is the rotary head which is here shown as circular and is provided with a flat face 2 disposed at a right angle to the axis of rotation of said head. 3 are circular grooves forming in the flat face 2, concentric with the axis of rotation of the head 1.

The cutting edge comprises a flat hacksaw or metal saw 4, formed in an arc with the usual teeth 5 set, as customary with saws of this character.

In Figs. 1 and 2 of the drawing we have shown a particularly simple and efficient attachment for this tool, by the use of which we are enabled to increase the range of said tool and cut holes of any desired size.

6 is the body of said attachment which in this embodiment of our invention is in the form of a ring having a flat face 7 with grooves 8 therein, corresponding to the face 2 and grooves 3 of the rotary head 1.

The outer side 9 of the rotary head closely fits the inner diameter 10 of the ring 6 and the upper part thereof is formed with an annular extension 11 which fits into a complemental annular recess 12 formed in the ring 6. The head is formed with pro3ections or lugs 13 and the ring with open ended slots 14 forming bayonet joints for locking said parts.

In use the lugs 13 of the rotary head 1 are placed inthe open ends of the slots 14 of the attachment or ring 6 thereby bringing the extensidn 11 of the head into the recess 12 formed in the ring. A slight turn of the head forces the lugs into the end of the slots 1-1 therebylocking the bayonet joint and holding the head and ring together.

The extension 11 fits into the recess 12 and releases the lugs 13 from strain when pressure is applied to the head.

Obviously, the attachment or ring may be rovided with an extension and lugs simiar to those of the rotary head for locking additional rings thereto, or each ring may be rovided with but a single groove of the desired diameter.

In use the saw blade is sprung into one of the concentric rooves and is held from movement relative y to the rotation thereof bv means of a pin 15 extending radially into the head 1, or through the attachment 6,

from the outer diameter thereof and passing through the grooves and through one end of the saw blade el, there being one pin 15 for the head and one for each attachin ring.

As t e grooves are made Wide enough to readily receive the saw, the saw conforms or hugs one of the sides as the inner side of the groove and in order to permit the saw to so conform to one of the circular walls of the groove without distortion or buckling, the saw is secured in position to the head at one point only as at the advance end thereof with respect to the direction of rotation. The Wall of the groove which the saw ongages durin the use thereof is approxh rnately the diameter of the hole to be cut.

The rotary head 1 is revided with means for forming a central. caring for the tool. and as here shown, a. passage it; is formed axially therein extending from the fiat face 2 thereof. A drill 17 is held in said passage 16 b a set screw 18, and the cutting surface of t e drill extends beyond the flat face of the head 1 and beyond the teeth 5 of the arcshaped cutting edges.

As the cutting edge of this tool extends around the renter part of the circumference of the hole to be cut, thus p esenting a large cutting surface to the worlt. it desirable that equal )rcssure be exerted on the entire cutting surracet in order that the tool will cut with most ellicienry. To accomplish this, we have provided our tool with a uni versal joint between the rotating head and the spindle from which the power is trans mitted.

As here shown, the head 1 is prtwided with an upwardly calcndihe, huh l? having a cup-shaped socket 211 in its upp r and. The spindle 21 is squarcrgl at its luv. end, as shown at 22, extends into a socket Q3 of a bell-shaped member 24 and is pivoted by a pin 25 thereto. the socket being o f-- ilcient len 11 to allow the spindle iii- [)ZVUlZ therein. he ball-shaped member is provided with an external rib 26 extending around the lower half thereof on :1 plane of. the ivot 25 and the cupshaped socket is provided with a con:plenientary groove 27. A cap 28 provided with a square 0119B inn 29 in the top thereof is threaded on the hub 19 to hold the bull-sliapral member in its socket 20.

The surfaces 30 at the meeting edges of the squared part 2'2 of the spindle are of .the same diameter as the distance diametrically between squared sides of hole 29 in the cap 28, and as clearly illustrated in Fig. 5 of the drawing; an eighth of a turn of the cap 28 will lock the head i and the spindle 21 from universal movement.

The spindle 21 is tapered and is provided with fiat sides 31for clamping the same in the jaws of a hand drill or brace, and the cuts through the same very rapidly.

extreme end of the spindle on two of the flat sides is cut away, as at 32. for entering the socket in the chuck of a power machine.

In use the operator first locates the center where the hole is to be cut and places the point of the drill thereon; upon rotation of the head, the drill cuts a small hole in the metal, which hole centers the cutting edge with respect to the hole to be cut and forms a central bearing for the tool.

U on further rotation of the head 1 the teet. of the cutting edge come in contact with the surface to be cut and as it resents a large cutting face to said sur ace,

What We claim is:

1. A metal cutting tool comprising a rotary head for holding a cutting edge; a spindle extending therefrom for connection with a rotating means, means for obtaining a universal movement between the -rotary head and said spindle, and means for locking said. parts from universal movement, fiulpistantially as and for the purpose speci- 2. A metal cutting tool com rising a rotary head, having a fiat face with a. circular groove therein concentric with the axis of rotation thereof, an arc-shaped haeksaw in said groove with the cutting edge thereof extending beyond and parallel with the flat face of the rotary head, the saw having means at one end'thereof for holdin the same from rotative movement relativ y to said head, a spindle extending from the head and means for obtaining asuniversal movement between the rotary head and said spindle, substantially as and for the purpose set forth.

3. A metal. cutting tool comprisin a. retery head. having a flat face with circular grooves therein concentric with the axis of rotation thereof. an arcgshaped hacksaw in said groove with the cutting edge thereof extimding beyond and parallel with the flat face of the rotary head, the saw having means at one end thereof for holdin the same from rotative movement relative y to said head, a spindle extending from the head, means for obtaining a universal movement between the rotary head and said spindle and means for locking said parts from universal movement, substantially as and for the purpose described.

4. A metal cutting tool comprisin a rotary head having a flat face with a circular groove therein concentric with the axis of rotation thereof for holding an arc-shaped hacksaw, and means for removably attaching an additional groove containing part to said rotary head, substantially as and for the purpose specified.

5. A metal cutting tool comprising a retaryhead having a flat face with a circular groove therein concentric with the axis of meme": 8

rotation thereof, an arc-Shaped hecksaw in In testimony whereof, we have hereunto said oove with the cutting edge thereof slg'r e'd our names 14 the preser oe of two atexten ing beyond and parallel withtheflat testing witnesses, at Syracuse, in the county face of the rotary heed, the saw having of Onondaga and State of New York, time 15 5 means at one end. thereof forholding the 28th day of Sept., 1917.

5 5223* was; "e zzezusg ezm JOHN MISENER- sei 1 head end meens between the rotary head WILLlAM SANDERS andthe spindle for equalizing the pressure Witnesses: .10 on said archaped hacksaw, substantlally as 'Cims. H YOUNG,

and for the purpose described. J Gmzmx.

v It'ie.hereby certified that Letters Peteiit No. 1,281,627} greeted October 15, l 1918, lipori the epplicatioii of Johh I. Misener end William S. Senders, of Syracuse, New York, for animprov ement in MetaLCutting Tools," were erroneously issued to Misener& Irving Menuiectui'i ng Co. Inc., are essiguee, and the secondmemed inventor said Senders, jointly whereas said Letters Patent should have been issued to Mtsener (f: Iw'i'rig flanufecturing 00. Inc., as assignee of the entire interest in guidinirention, ea shown hy the reoords of assig lguents in this ofiice; and that the Patent should with this correction therein that the same may conform to the record of theease in the Patent Office.

Signed and sealed this 10th day of .Deeerhber, A. D. 1918.

[with] F. W. H. CLAY,

Acting Commissioner of Patents.

Correction in Letters Patent No. 1,281,627.

melee": B

rotation thereof, an arc-shaped hacksaw in In testimony whereof, we have hereunto said oove with the cutting edge thereof slg'r e'd our names 14 the preser oe of two atexten ing beyond and parallel withtheflat testing witnesses, at Syracuse, in the county face of the rotary head, the saw having of Onondaga and State of New York, thls 15 5 means at one end. thereof forholding the 28th day of Sept., 1917.

se ne from rotati v movement relatively to I JOHN L MISENER said head, a spm e extending from the WILLlAM S. SANDERS. head and means between the rotary head andthe spindle for equalizing the pressure Witnesses:

.10 on said archaped hacksaw, substantlally as 'Cims. H YOUNG,

and for the purpose described. J Gmzms.

v It'is.hereby certified that Letters Pateiit No. 1,281,627} greeted October 15, l 1918, lipori the spplicatioii of Johh I. Misener and William S. Senders, of Syracuse, New York, for animprov ement in MetaLCutting Tools," were erroneously issued to Misener& Irving Menuiectui'i ng Co. Inc., are assiguee, and the secondmemed inventor said Senders, jointly whereas said Letters Patent should have been issued to Mtsener (f: Iw'i'rig flanufecturing 00. Inc., as assignee of the entire interest in saidinirention, as shown hy the reeords of assig lguents in this ofiice; and that the Patent should with this correction therein that the same may conform to the record of theease in the Patent Office.

Signed and sealed this 10th day of .Deeerhber, A. D. 1918.

[with] F. W. H. CLAY,

Acting Commissioner of Patents.

Correction in Letters Patent No. 1,281,627. 

